Leak was at this tee.
Notice the lack of any primer. Doesn't look like any glue on the pipe either.

Looks like the work of one of my ex-employees. Refused to use primer or glue both the pipe and fitting. I refused to continue paying him so he started his own company. I make a lot of repair money off that dude!

Looks like the work of one of my ex-employees. Refused to use primer or glue both the pipe and fitting. I refused to continue paying him so he started his own company. I make a lot of repair money off that dude!

There was a contractor that installed some irrigation for the city I worked for long ago.

He killed two birds with one stone. He mixed primer and glue in the same can.